DOI: 10.1055/s-00000099

Zeitschrift für Orthopädie und Unfallchirurgie

References

Birkmeyer JD, Reames BN, McCulloch P. et al.
Understanding of regional variation in the use of surgery.

Lancet 2013;
382: 1121-1129
doi:10.1016/S0140-6736(13)61215-5

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